Patients participating in the surveillance development cohort study
| Cardiac surgery | Intensive care | Internal medicine | Obstetrics | |||||
| Patients | N=226 | N=211 | N=453 | N=516 | ||||
| Age, median (IQR) | 70 (61 to 76) | 66 (54 to 75) | 74 (61 to 84) | 30 (26 to 33) | ||||
| Length of stay, median (IQR) | 2.1 (1.1 to 5.0) | 4.8 (2.6 to 9.3) | 8 (5 to 14) | 2.4 (1.9 to 3.1) | ||||
| Female | 68 (30%) | 79 (37%) | 225 (50%) | 516 (100%) | ||||
| Charlson index | ||||||||
| 0 | 69 (31%) | 63 (30%) | 78 (17%) | – | ||||
| 1 | 113 (50%) | 94 (45%) | 165 (36%) | – | ||||
| 2 | 37 (16%) | 40 (19%) | 103 (23%) | – | ||||
| 3 | 7 (3%) | 14 (7%) | 107 (24%) | – | ||||
| Diabetes | ||||||||
| Mild* | 61 (27%) | 19 (9%) | 63 (14%) | – | ||||
| Severe* | 19 (8%) | 9 (4%) | 76 (17%) | – | ||||
| Cancer | ||||||||
| Local | 0 (0%) | 23 (11%) | 61 (13%) | – | ||||
| Metastatic | 0 (0%) | 3 (1%) | 20 (4%) | – | ||||
| Congestive heart failure | 32 (14%) | 17 (8%) | 95 (21%) | – | ||||
| Chronic obstructive pulmonary disease | 31 (14%) | 33 (16%) | 84 (19%) | – | ||||
| Renal disease | 29 (13%) | 17 (8%) | 82 (18%) | – | ||||
| Admit indication (top 10) | CABG | 123 (54%) | Neurological disease | 39 (19%) | Infection | 122 (27%) | Labour | 324 (63%) |
| Other | 28 (12%) | Elective surgery | 34 (16%) | Fluid, electrolyte | 51 (11%) | Induction | 87 (17%) | |
| AVR | 26 (12%) | Respiratory failure | 30 (14%) | Pulmonary | 45 (10%) | Elective Caesarean section | 56 (11%) | |
| AVR+CABG | 23 (10%) | Other | 25 (12%) | Gastrointestinal | 34 (8%) | Ruptured membranes | 34 (7%) | |
| MVR | 12 (5%) | Trauma | 24 (11%) | Vascular | 34 (8%) | Pregnancy-induced hypertension | 10 (2%) | |
| MVR+CABG | 6 (3%) | Sepsis syndrome | 23 (11%) | Congestive heart failure | 28 (6%) | Maternal illness | 3 (1%) | |
| Multiple valves | 5 (2%) | Emergency surgery | 19 (9%) | Cognitive | 24 (5%) | Antepartum bleeding | 1 (0%) | |
| Multiple valves+CABG | 3 (1%) | Cardiogenic shock | 7 (3%) | Social | 16 (4%) | |||
| Shock other | 6 (3%) | Haematological | 14 (3%) | |||||
| Dysrhythmia | 3 (1%) | Diabetes mellitus complications | 11 (2%) | |||||
* Diabetes was classified as mild or severe based on the presence of end organ damage.
AVR, aortic valve replacement; CABG, coronary artery bypass graft; MVR, mitral valve replacement.